ABERTHAW 

CAST  STONE 

(PATENTED! 


FOR  TRIMMINGS  OF  BUILDINGS 
AND  OTHER  USES 


ABERTHAW  CONSTRUCTION  C° 

8 BEACON  STREET,  BOSTON 

CONCRETE  ENGINEERS  Cr  CONTRACTORS  FOR  CONCRETE 
° MASONRY  OF  ALL  KINDS 

MEMBER  MASTER  BUILDERS-  ASSOCIATION 


ABERTHAW  CAST  STONE 

(PATENTED) 

For  Trimmings  of  Buildings 

AND  OTHER  USES. 


ABERTHAW  CONSTRUCTION  C° 

8 BEACON  STREET.  BOSTON 

CONCRETE  ENGINEERS  Cr  CONTRACTORS  FOR  CONCRETE 
MASONRY  OF  ALL  KINDS 

MEMBER  MASTER  BUILDERS’  ASSOCIATION 


Circular  No.  ^ 


ORESEEING  the  tendency  of  the  times, 
and  complying  with  an  already  active  de- 
mand for  a high-grade  building  stone  at  a 
reasonable  price,  we  have  started  a shop  for 
casting  Portland  cement  concrete. 

We  can  cast  stone  as  light  colored  as  Berea  limestone 
or  gray  sandstone,  at  the  same  time  so  closely  copying  its 
texture  and  finish  as  to  deceive  an  expert. 

W e can  also  copy  red  or  brown  sandstone  with  equal 
exactness. 

Bluestone  and  slate  can  be  very  easily  matched  in 
color. 

Our  composite  granite  is  worthy  of  careful  con- 
sideration. 

********* 

RCHITECTS  have  found  concrete  to  be  the 
most  satisfactory  of  building  material  where 
strength,  durability,  or  fireproof  qualities  have 
been  the  governing  considerations.  Its  appearance  alone 
has  prevented  its  general  use  as  a facing  for  the  walls  of 
buildings. 

Aberthaw  cast  stone,  while  retaining  all  the  merits  of 
concrete,  has  in  addition  the  handsome  appearance  of 
natural  stone. 

It  is  made  by  a patented  process,  whereby  the  stone 
is  indurated  with  chemicals  when  cast,  changing  the  struct- 
ure and  correcting  the  imperfections  which  have  previously 
been  objectionable. 


Efflorescence  is  entirely  overcome  by  the  chemical 
treatment  used. 

This  stone  is  much  less  porous  than  Indiana  limestone 
and,  therefore,  it  does  not  stain  or  mold  green. 

W hen  necessary,  the  stone  is  re-enforced  with  em- 
bedded twisted  steel,  and  then  possesses  all  the  merits  of 
concrete-steel  construction. 

*¥**¥**+* 

E do  not  use  wooden  or  rigid  molds  of  any 
type.  Owing  to  swelling  and  warping  when 
wet,  wooden  molds  are  likely  to  give  rough 
and  irregular  castings.  In  any  case,  when  the  mortar 
or  concrete  contains  sufficient  water  for  strong  results, 
it  flushes  to  the  surface  and  gives  a flat,  uninteresting 
appearance.  Below  this  the  concrete  is  likely  to  be  uneven 
and  full  of  air  cells.  If  the  molds  are  not  very  tight,  the 
mortar  will  run  out  of  the  cracks,  showing  a line  and  mak- 
ing a rough  streak  in  the  stone.  This  is  especially  likely 
to  occur  at  the  corners,  and  thus  weaken  the  casting  where 
it  most  needs  strength. 

In  order  to  use  the  molds  over  again,  as  soon  as  pos- 
sible, concrete  packed  in  rigid  molds  is  usually  mixed  very 
dry, — too  dry  to  obtain  full  strength  from  the  cement. 

E use  chemically  treated  porous  molds  and  mix 
the  concrete  very  wet.  The  difference  in  results 
has  already  been  pointed  out. 


3 


USES  for  ABERTHAW  CAST  STONE 


Window  and  door-sills  and  lintels,  either  plain  or  ornamental. 
Ashlar.  Smooth,  tooled,  or  rock  faced. 

Belt  courses  and  cornices  of  any  design. 

Chimney  caps  and  cowls. 

Steps,  newel  posts,  balustrades. 

Wainscot,  tiles,  hospital  base. 

Lavatory  partitions,  urinal  backs,  wash  trays. 

Electric  switchboards,  rheostat  bases,  etc. 

Italian  gardens,  vases,  fountains,  seats. 

Wall  caps,  columns,  balustrades. 

Monuments,  tombstones,  coffin  cases. 

Drinking  fountains,  watering  troughs. 

Bridge  railings,  keystones,  curbs. 

Sewer  pipe  and  fittings. 


4 


T.  F.  Schneider,  A rchitect . 


FLOWRENCE  APARTMENTS,  1 5TH  AND  L STS.,  WASHINGTON,  D.  C. 

This  and  the  other  Washington  views^are  furnished  by  the  courtesy'of  the  Standard  Stone  Co. 

of  Washington.  D.  C. 


Aberthaw  cast  stone  is  superior  to  terra  cotta 
because  it  is 

Handsomer.  Stronger. 

Looks  like  stone.  Does  not  warp. 

Made  more  quickly.  Made  in  Boston. 

Uniform  and  regular  in  size. 

In  case  of  damage,  more  easily  and  quickly  replaced. 

********* 

Reasons  why  ordinary  concrete  is  not  com- 
monly used  for  building  stone 

Flat,  uninteresting  color. 

Not  uniform  in  texture  or  color. 

Mortar  stains  often  give  irregular  color. 

Mortar  stains  not  always  permanent  in  color. 
It  effloresces  or  stains  white. 

Sharp  detail  impossible. 

Coarse  texture. 

Cutting  of  stone  gives  porous  surface. 

It  cannot  be  carved. 


6 


Smooth  or  rock  faced,  plain  or  carved,  straight  or  curved  work  can  be  readily  produced. 


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7 


PROPERTIES  OF  ABERTHAW 
CAST  STONE 


Color  can  be  varied  from  that  of  light  marble  to  that  of  slate. 
Texture  close  grained  and  compact. 

Texture  and  color  uniform. 

Color  varied  by  change  of  aggregate;  hence  color  as  fast 
as  that  of  natural  stone. 

It  is  not  stained  by  cement  mortar. 

Chemically  treated  to  prevent  efflorescence  and  to  increase 
hardness. 

It  never  molds  nor  turns  green. 


Grows  harder  with  time. 

It  is  waterproof. 

Stone  being  uniformly  hard  throughout,  can  be  cut  or  carved 
like  natural  stone. 

Small  detail  can  be  reproduced  perfectly. 

All  stones  are  exact  size,  therefore  they  are  easily  set  with- 
out fitting. 


8 


Cast  stone  is  a worthy  ornament  for  the  most  important  and  beautiful  of  buildings. 


9 


Speiden  C*3  Speiden , Architects. 

STONE  WALL,  29TH  STREET,  BETWEEN  Q AND  R,  WASHINGTON,  N.  W. 


« 


PAVALION  BRANDYWINE  PARK,  WILMINGTON,  DEL. 

Everything  from  floor  up  is  cast  stone  made  by  the  Standard  Stone  Co.,  140  Nassau  St.,  New  York. 

IO 


PHI  GAMMA  DELTA  FRATERNITY  HOUSE  POST  CAP  ON  GARDEN  WALL 

YALE  UNIVERSITY.  FOR  MR.  LARZ  ANDERSON,  BROOKLINE. 

Whole  front  of  cast  stone.  Built  by  Aberthaw  Construction  Company.  Made  by  Aberthaw  Construction  Company. 


UN  IV  E RSITY'  Entire  fence  built  by  Aberthaw  Construction  Company. 


Rock  Face  Ashlar.  Cutting  of  surface  is  hand  work.  Notice  the  density  and  fineness  of  the  stone. 


’Wtf'j 


tV.  S.  P lager,  A rchitect. 

SEVEN  HOUSES,  14TH  AND  E.  CAPITOL  STREETS,  WASHINGTON  . 


Chas.  Simpson,  Architect. 

SIX  HOUSES,  MORGAN  AVENUE,  WASHINGTON,  N.  W. 

A highly  ornamental  stone  for  a little  greater  cost  than  must  be  paid  for  wood  or  galvanized  iron, 
vastly  increases  the  possibility  of  adornment  of  moderate  priced  buildings. 


14 


Ornamental  Castings  can  be  as  accurately  made  as  plain  ones. 


TWO  BALUSTERS  AND  ROCK  FACE  STONE. 

Cast  Stone  can  be  worked  with  tools  easier  than  the  natural  stone. 


16 

AVERY  LIBRARY 

COLUMBIA  UNIVERSITY 


Aberthaw  Construction  Co. 

Workers  in  Concrete 


WE  ARE  PREPARED  TO  DESIGN  OR  BUILD  ANYTHING 
MADE  OF  CONCRETE 
*** 

8 BEACON  STREET 
BOSTON 


The  Hefntjemann  Press.  Boston 


